Driver: Prep for tool chain specific argument translation.

 - Lift ArgList to a base class for InputArgList and DerivedArgList.
 
 - This is not a great decomposition, but it does embed the
   translation into the type system, and keep things efficient for
   tool chains that don't want to do any translation.

 - No intended functionality change.

Eventually I hope to get rid of tool chain specific translation and
have each tool do the right thing, but for now this is the easiest way
to match gcc precisely (which is good for testing).

llvm-svn: 67676

1 files changed, 6 insertions, 5 deletions

diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index 2ffd6419101..85d76c8c20f 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -56,9 +56,10 @@ Driver::~Driver() {
   delete Host;
 }
 
-ArgList *Driver::ParseArgStrings(const char **ArgBegin, const char **ArgEnd) {
+InputArgList *Driver::ParseArgStrings(const char **ArgBegin, 
+                                      const char **ArgEnd) {
   llvm::PrettyStackTraceString CrashInfo("Command line argument parsing");
-  ArgList *Args = new ArgList(ArgBegin, ArgEnd);
+  InputArgList *Args = new InputArgList(ArgBegin, ArgEnd);
   
   // FIXME: Handle '@' args (or at least error on them).
 
@@ -171,7 +172,7 @@ Compilation *Driver::BuildCompilation(int argc, const char **argv) {
     }
   }
 
-  ArgList *Args = ParseArgStrings(Start, End);
+  InputArgList *Args = ParseArgStrings(Start, End);
 
   Host = GetHostInfo(HostTriple);
 
@@ -851,8 +852,8 @@ void Driver::BuildJobsForAction(Compilation &C,
     }
     llvm::errs() << "], output: " << Result.getAsString() << "\n";
   } else {
-    const ArgList &TCArgs = C.getArgsForToolChain(TC);
-    T.ConstructJob(C, *JA, *Dest, Result, InputInfos, TCArgs, LinkingOutput);
+    T.ConstructJob(C, *JA, *Dest, Result, InputInfos, 
+                   C.getArgsForToolChain(TC), LinkingOutput);
   }
 }